Capping-tool.



D. M. RESSLAR & F. BUTLER.

GAPPING TOOL.

APPLICATION TILED FEB. 8, 1913.

1,077,301. Patented Nov. 4, 1913,

"as will become apparent as the description STATES PATENT OFFICE.

DANIEL M. BESSIJA R AND FRANK BUTLER, 0F MOUNT VERNON, OHIO.

oArPINe-Toon Specification of Letters Patent.

Patented Nov. 4, 1913.

Application filed February 8,1918. Serial No. 747,126.

,in Capping-Tools, of which the following is a specification, reference being had to the accompanying drawings. a

This invention relates to an improved capping tool of that character commonly employed for heating and severing glass cylinders, the invention having for its primary object to provide improved means for taking up the expansion of the heating wire or tensioning the same.

Another object of the invention is to produce a device for the above purpose which may be conveniently operated by one hand, and includes a body having the circuit wires arranged thereon and connected to the terminals to whichthe cylinder encircling wire is in turn connected, a trigger actuated member mounted upon said body to engage the wire and tension the same, and a switch also mounted upon the body and located in the circuit, whereby said circuit *may'b'e opened or closed at the convenience of the operator.

Still another objectof the invention is to produce a capping tool for the above purpose which is simple and inexpensive in its construction and very durable as well as 'eflicient in operation.

With the above and'other objects 1n view -preceeds, the invention consists in certain constructions, combinations and arrangements of the parts that I shall hereinafter fully describe/and claim.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which? Figure 1 is a side elevation of a cylinderv capping tool embodying the present-invention; Fig.2 is a top plan view of the device;

and Fig. 3 is a section taken on-the lineis adapted to receive the wire 17 at a point 3-3 of Fig. 1.

Referring in detail to the drawings, 5 designates the body of the device which is constructed of a suitable insulating material and includes an elongated arm 6 and an angularly disposed oii'set end 7, such offset .end serving as ahand grasp whereby the device a may be conveniently manipulated.

Upon this offset end portion of the body or base, a suitable switch is mounted, said switch embodying thespaced contact members 8 to which the positive and negative wires 9 from a suitable source of current supply are connected. These wires are extended upon one side of the body 5 and suitably secured thereto, the extremities of the wires being connected to the spaced terminal members 10 and 11 mounted upon the extremity of the arm 6. The electric circuit is adapted to be closed by the mov able switch member 12 which is suitably mounted in the switch casing and isnormally held in its open position by means of a spring 13. The stem 14 of this movable member extends transversely of the hand grasp 7 and in convenient position to be actuated by the thumb of the operator.

The terminal member 10 is in the form of a short plate fixed in the upper edge of the body 5, and this plate is provided with a s ot 15 opening upon the upper edge and one end thereof. The other of the terminal members 11 is in the form of a bolt extending transversely through the arm 6 and upon one end of this bolt a sheave or roller 16 is loosely mounted. One end of a heating wire 17 is adapted to be connected to the terminal bolt 11 and passed therefrom around the glass cylinder to be out or severed. The wire is then returned and'extended around-the terminal sheave 16 and has its extremity passed through the slot 15 in the terminal plate 10. The wire is then suitably bent so as to retain the same in said slot. When the electric circuit is closed and the current passed through the wire 17, the same will of course expand and in order to take up this expansion, and hold the 'Wire in close engagement with the periphery oftheglass cylinder, I provide a lever 18 which is of angular form and is fulcrumed at the juncture of its arms upon a stud 19 fixed in the base or body 5. One of these arms extends above the upper edge of the arm 6 of the body and is provided with a short longitudinal slot or recess 20 which adjacent to the end thereof which is disposed through the opening 15 of the terminal plate. To the otherarm of this lever which extends "inwardly upon the base or body member 5, one end of a link 21 is pivotally connected. The other end of this link is pivoted to a trigger member 22 which is iltl pivotally mounted at one of its ends in an elongated recess 23 formed in the lower edge of the arm 6 of the body upon the stud 24 secured to said body. This trigger mem her at its pivoted end is provided with a downwardly and forwardly curved extension 9.5 positioned in close proximity to the hand grasp Y for engagement by the form finger of the operator. A spring 26 is connected at its ends to the body and to said trigger member respectively and normally acts to hold said trigger member against pivotal movement and Within the recess of the arm 6. A stop pin 27 is secured to the arm 6 and with the same, the inner end of the lever 18 is adapted to engage to limit its movement in one direction.

From the foregoing, the operation of the device will be readilyunderstood. After the heating wire has been passed around the glass cylinder and around the terminal sheave 16 the same is then disposed in the slot in the outer end of the lever 18 and connected to the terminal plate 10 in the manner above described. The operator then closes the electric circuit by actuating the movable switch member so that the Wire l7 becomes highly heated, and finally cuts its Way through the wall of the glass cylinder. When the Wire expands as it is heated by the electric current, such expansion is talren up by means of the lever 18 which is actuated by the operator pulling upon the thumb piece of the trigger d2 with his forefinger,

thereby throwing the outer end of the leverv 18 upwardly and inwardly to exert a pull upon the Wire, thus maintaining the same in close engagement with the perlphery of the glass cylinder. By providing this improved tensioning means for the heating Wire, the necessity of pulling the same by hand to tension the wire as it exnands, is obviated. The operator is often-so jected to a severe shock and the Wire often is engaged with one of the protruding metal parts of, the capping bar or stick, thus causing a short circuit. It will be obvious that' by means of the present invention, these several objections are obviated and a device produced which will at all times hold the heated Wire in engagement with the lass cylinder and which,may be easily an quickly actuated With one hand by the operator.

ove no.

It will, of course, be obvious that in carry ing out our invention, We do not wish to be limited. to the specific form 01" switch illustrated in the accompanying drawing; as many different forms of switches now upon the market may be employed. The terminals 10 and ll. can also be so arranged with relation to each other so that the glass cylin der can be cut at any desired angle. The in vcntion is also susceptible oi: many other modifications in the form, proportions and arrangement of the several parts without departing from the essential features there of or sacrificing any of its advantages.

Having thus described the inventiomvvhat is claimed lSi l. A device of the character descrihedineluding a body provided with a hand grasp and having suitable conductors and terminals, a heating Wire connected with such terminals and adapted to be passed around the article to be severed a circuit closer for the conductors positioned adjacent the hand grasp, and manually operated means positioned adjacent the hand grasp for tensioning said Wire.

2. device oil the character described in cluding a body provided with a hand grasp and having conductors and terminals,aheating Wire engaged with said terminals and adapted to encircle the article to be severed, and manually operable tensioning means for the wire positioned adjacent to the hand grasp.

3. A eluding a body adordinga hand grasp and having suitable terminals and conductors, a circuit closer for the conductors carried. by the hand grasp provided with a reciprocating stem directed transversely of the hand asp, a heating Wire operatively engaged with the terminals, and mannually operable tensioning means for the Wire positioned adjacent the hand graspu In testimony whereof We hereunto on our signatures in the'presence of two Witnesses.

DANIEL M. ,tldfiiSLAR, FRANK BUTLER,

Witnesses it. Gorsnann, TDavno F Ewrno.

device of? the character described in 

